CN220205492U

CN220205492U - Daytime running lamp luminous structure with uniform light emission and compact structure

Info

Publication number: CN220205492U
Application number: CN202321686399.4U
Authority: CN
Inventors: 王继增; 李志刚; 滕云鹏; 金平; 闫霍彤; 邹春雨; 盛红金; 甄麒; 吴明呈
Original assignee: FAW Bestune Car Co Ltd
Current assignee: FAW Bestune Car Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-19
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a light-emitting structure of a daytime running lamp with uniform light emission and compact structure, which belongs to the technical field of car lamps and comprises a plurality of module optical structures arranged side by side, wherein a single module optical structure comprises an LED light source, a condenser, a total reflection surface and a light-emitting surface; the three total reflection surfaces are all arranged at an angle of 45 degrees, the first total reflection surface reflects incident light to the second total reflection surface, the second total reflection surface reflects the incident light to the third total reflection surface, the condenser is arranged above the first reflection surface, and the light emergent surface is arranged on the emergent light path of the third total reflection surface; the LED fluorescent lamp has the advantages that the structure is compact, the light emitting surface is 45mm 16mm, the particle sense is obviously weakened, the light emission is uniform, the number of LED particles is small, and the requirements of GB 23255-2019 daytime running lamp light distribution performance regulation can be met by three similar structures. And the single structure can be used as a standard module, has good portability, can be directly used for a required vehicle, and greatly reduces the workload of vehicle lamp designers.

Description

Daytime running lamp luminous structure with uniform light emission and compact structure

Technical Field

The utility model belongs to the technical field of car lamps, and particularly relates to a light-emitting structure of a daytime running lamp with uniform light emission and compact structure.

Background

With the continuous development of the automobile industry, the technical scheme of the car lamp is continuously perfect and gradually matures. The vehicle lamp is increasingly provided with more and more complex functions, wherein the daytime running light function is regulated as an optional function in the regulations of GB 4785-2019 on the installation regulations of external lighting and optical signal devices of vehicles and trailers, but the daytime running light is not used for enabling a driver to see the road surface clearly, but is used for enabling others to know that a vehicle is started; the addition of daytime running lights can make the automobile look more cool and dazzling, but the biggest effect of the daytime running lights is not beautiful, but the discernability of the automobile is provided. When the daytime running lamp is started in foreign running, the accident of the vehicle can be reduced by 12.4 percent, and meanwhile, the death rate of the accident can be reduced by 26.4 percent. The trend in daytime running lights is therefore becoming more and more important. The light distribution method of the daytime running light is roughly divided into the following modes:

led + light guide format

Light guide technology is a technology that uses a reflection mechanism caused by two materials having different refractive indices to achieve long-distance large-area uniform illumination by transmitting light from one location to another location using total reflection of the light around a boundary medium. Its advantages are small size of light guide, less space structure and less LEDs. However, the light-emitting device has the defects that the light-emitting uniformity is poor, the position close to the light-entering end is generally brighter, the position far from the light-entering end is darker, and the light color is easy to yellow;

led + thick-walled light guide format

The thick-wall light guide forms are generally classified into direct-casting thick-wall light guides and side-casting thick-wall light guides.

The direct-casting thick-wall light guide is characterized in that a condenser is arranged in the direction of a light emitting surface, LED light rays are directly emitted into the thick-wall light guide through the condenser, and the direct-casting thick-wall light guide has the advantages that the uniformity of the form of the direct-casting thick-wall light guide is improved compared with that of the light guide, however, the direct-casting thick-wall light guide has the defects that the center of the direct-casting LED is brighter, so that the light and shade difference between the center and the positions at two sides is obvious;

the side-projection thick-wall light guide generally has the advantages that the LED is arranged above or below the light-emitting surface, light is reflected out through a 45-degree inclined plane, the uniformity is further, and a large space structure is not needed. The disadvantage is that the number of LEDs is high, or that a pronounced graininess can occur.

LED+ diffusion material

The LED directly emits light to pass through the light emitting surface and a diffusion material surface. Its advantages are simple structure, obvious defect and low light utilization rate.

Other structures are combined with the structures or realized by adopting Fresnel lenses and other OLED lamp technologies.

Disclosure of Invention

In view of the above problems, the present utility model provides a daytime running light emitting structure with uniform light emission and compact structure, comprising: a plurality of module optical structures are arranged side by side, wherein the single module optical structure comprises an LED light source, a condenser, a total reflection surface and a light emergent surface; the total reflection surface is three, all is 45 angle settings, and first total reflection surface reflection incident light is to the total reflection surface of second, and the total reflection surface reflection is to the total reflection surface of third, and the spotlight ware setting is in first reflection surface top, and the exit surface setting is on the total reflection surface outgoing light route of third.

The technical scheme of the utility model is as follows, a daytime running lamp light-emitting structure with uniform light-emitting and compact structure comprises: a plurality of module optical structures are arranged side by side, wherein the single module optical structure comprises an LED light source, a condenser, a total reflection surface and a light emergent surface; the total reflection surface is three, all is 45 angle settings, and the LED light source sets up directly over the condenser center, and first total reflection surface sets up on the condenser spotlight light path, and the second total reflection surface sets up on first total reflection surface reflection light optical path, and the third total reflection surface sets up on the second total reflection surface reflection light optical path, and the exit surface sets up on the third total reflection surface exit light optical path.

Further, the condenser is provided with round or rectangular patterns.

Further, the light-emitting surface is provided with 1mm x 1mm corn grain patterns.

Further, the luminous flux of the LED light source is 76lm.

Further, there are three modular optical structures.

Further, the module optical structure is externally sleeved with a shell.

The beneficial effects of the utility model are as follows:

the utility model relates to a novel thick-wall light guide luminous structure, which essentially belongs to a side-projection thick-wall light guide, but optimizes luminous defects and other defects of a general side-projection thick-wall light guide. The novel thick-wall light guide luminous structure has the advantages that the structure is compact, the light emitting surface is 45mm 16mm, the particle sense is obviously weakened, the luminous effect is uniform, the number of LED particles is small, and three similar structures can meet the requirement of GB 23255-2019 daytime running light distribution performance regulation. And the single structure can be used as a standard module, has good portability, can be directly used for a required vehicle, and greatly reduces the workload of vehicle lamp designers.

Drawings

FIG. 1 is a schematic cross-sectional view of a single standard module of the present utility model.

Fig. 2 is a schematic diagram of a light emitting structure group according to the present utility model.

FIG. 3 is a schematic view of the optical path of the present utility model.

Figure 4 is an isometric view of a single standard module of the present utility model.

Fig. 5 is a front view of a single standard module of the present utility model.

Fig. 6 is a left side view of a single standard module of the present utility model.

Fig. 7 is a front view of the daytime running light of the present utility model.

Fig. 8 is a daytime running light code diagram of the utility model.

Fig. 9 is a daytime running light pattern of the present utility model.

Fig. 10 is a view showing the effect of lighting at daytime running light H0V0 according to the present utility model.

Fig. 11 is a view showing the effect of lighting at daytime running light H0V5 according to the present utility model.

FIG. 12 is a graph showing the effect of lighting at daytime running lights H0V-5 according to the present utility model.

Fig. 13 is a view showing the effect of lighting at the daytime running light H5V0 according to the present utility model.

FIG. 14 is a graph showing the effect of lighting at daytime running light H-5V0 according to the present utility model.

In the figure:

1-an LED light source; a 2-condenser; 3-a first total reflection surface; 4-a second total reflection surface; 5-a third total reflection surface; 6-a light-emitting surface; 7-a shell.

Detailed Description

It should be noted that, in the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operate in a specific orientation.

In the present utility model, unless specifically stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and for example, "fixed" may be a fixed connection, a removable connection, or an integral body; the connection may be mechanical connection or electrical connection; the connection may be direct connection or indirect connection via an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

A daytime running light emitting structure which emits light uniformly and has a compact structure, comprising: a plurality of module optical structures are arranged side by side, wherein the single module optical structure comprises an LED light source 1, a condenser 2, a total reflection surface and a light emergent surface; the total reflection surface is three, all is 45 angle settings, and LED light source 1 sets up just above condenser 2 center, and first total reflection surface 3 sets up on condenser 2 spotlight light path, and second total reflection surface 4 sets up on first total reflection surface 3 reflection light path, and third total reflection surface 5 sets up on second total reflection surface 4 reflection light path, and light-emitting surface 6 sets up on third total reflection surface 5 reflection light path.

Further, the condenser 2 is provided with a circular or rectangular pattern.

Further, the light-emitting surface 6 is provided with 1mm x 1mm corn grain pattern.

Further, the luminous flux of the LED light source 1 is 76lm.

Further, there are three modular optical structures.

Further, the module optical structure is externally sleeved with a housing 7.

The condenser 2 is provided with a circular pattern and a rectangular pattern, the light-emitting surface 6 is provided with 1mm x 1mm corn grain patterns for improving uniformity, and the requirements of light distribution regulation are met for visible angles;

the LED light source selects the Eulerian KW_DMLN33.SG, the light source model selects the rayfile_KW_DMLN33_SG_yellow_5M_20180711_Speos. RAY and the rayfile_KW_DMLN33_SG_blue_5M_20180711_Speos. RAY respectively;

the luminous flux of the single LED light source 1 is 76lm, and the light can be met only by three LED light sources 1 according with regulations;

the optical architecture design used CATIA and the optical concentrator design used Lucidshape, and the optical simulation was performed by Speos. The structure design is firstly carried out by using the cata and Lucidshape software, then the optical simulation is carried out by using the Speos software, and the optical structure parameters such as the total reflection surface, the optical patterns and the like are continuously regulated, so that the light-emitting structure of the daytime running lamp with good uniformity can meet the regulations;

three identical optical modules are obtained by a single standard module array to form an optical structure conforming to optical regulations, the optical structure is made of PC, and an outer shell 7 for completing absorption is sleeved outside the optical structure, so that other stray light is not generated except a light-emitting surface 6;

the principle of the optical structure is that light is continuously totally reflected under PC material, so that light converged from the upper condenser can be emitted from the light emitting surface.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model. And all that is not described in detail in this specification is well known to those skilled in the art.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. A daytime running light emitting structure which emits light uniformly and has a compact structure, comprising: a plurality of module optical structures are arranged side by side, wherein the single module optical structure comprises an LED light source, a condenser, a total reflection surface and a light emergent surface; the total reflection surface is three, all is 45 angle settings, and the LED light source sets up in the focus department directly over the spotlight ware center, and first total reflection surface sets up the light path of emergent light after spotlight ware spotlight, and the second total reflection surface sets up the light path of first total reflection surface reflection light, and the third total reflection surface sets up on the light path of second total reflection surface reflection light, and the light-emitting surface sets up the light path of third total reflection surface emergent light.

2. A uniform and compact daytime running light emitting structure according to claim 1, wherein the condenser is provided with a circular or rectangular pattern.

3. A uniform and compact daytime running light emitting structure according to claim 1, wherein said light exit surface is provided with a 1mm x 1mm zee pattern.

4. A light-emitting structure of a daytime running light as claimed in any one of claims 1 to 3, wherein said modular optical structure has three light-emitting structures.

5. A uniform and compact daytime running light emitting structure according to claim 4 wherein said modular optical structure is externally sleeved with a housing.

6. A uniformly light-emitting, compact daytime running light emitting structure according to claim 5, wherein said LED light source has a luminous flux of 76lm.